Q-switched Alexandrite: 755 nm. The weakest of all the q-switched devices and somewhat similar to the Ruby laser in that the Alexandrite creates a red light which is highly absorbed by green and dark tattoo pigments. However, the alexandrite laser color is slightly less absorbed by melanin, so this laser has a slightly lower incidence of unwanted pigmentary changes than a ruby laser. This laser works well on green tattoos but because of its weaker peak power it works only moderately well on black and blue ink. It does not work at all (or very minimally) on red, orange, yellow, brown, etc. This laser wavelength is also available in a picosecond speed with anecdotal claims that it removes ink faster.
Once a popular location for women's tattoos, lower back tattoos are often viewed negatively nowadays. The original reason for having a lower back tattoo was because it was easily shown when desired and hidden when needed. The lower back tattoo has fallen out of popularity, but that doesn't mean you shouldn't get one if you feel this is the perfect spot for your tattoo.
One of the most popular places for girls to get tattoos is around the feet and ankles. It seems less of a commitment to a life long piece of art on you because it’s less noticeable and easily concealable. The feet are also not generally considered the most beautiful part of the body, so it can be a great way of making them look prettier and adding some art to them.